Railway-truck.



SHEET 1.

7 SHEETS Patented Apr. 13

H.H;VAUGHAN. RAILWAY TRUCK.

APPLICATION FILED JAN.24. 1906.

H. H. VAUGHAN.

RAILWAY TRUCK. APPLIUATION FILED JAN. 24, 190e.

Patented Apr. 13, 1909 7 SHEETS-SHEET 41AE[. H. VAUGHAN. y RAILWAY TRUCK. Arrnmurou FILED un. '2.4, 190s,

"917,979. Patented Apr. 13,l 1909.

7 SHEETS-SHEET 3.

H. H. VAUGHAN.

RAILWAY T nuox. APPLICATION FILED JAH. 24,-1906.

Patente-ed Apr. 13; 1909.

7 SHEETB-SHBET 4.

...III A H. HVAUGHAN. RAILWAY TRUCK.y APPLIOATIOI FILED IAN. 2 4. 1090` 4 917,979 Patented: Apr. 13, 1909.

1 suns-quant e.

:J @New H. H. VAUGHAN. RAILWAY TRUCK. u rmoulon FILED JAN. 24, 190s.

Patented Apr. 13, r1909.

witnesses nannvnafeun vanenaN,-or MONTREAL,ennenccxmnl..

Toallwhmtmayconcem: Y

Be it known 'that I, "HENRY" HAQUE VAUGHAN, ofthe city of Montreal, Province of Quebec, Canada, have invented certain newv and .useful Improvements in Railway# Trucks and I do hereby declare that the following vis a full, clear, and exact 'description' of the same. i l

This invention vrelates-to an'improved form of 'two wheeled truck forlo'comotives and similar vehicles, and is es ecially adapt,

ed for use on locomotives-of w `at4 are generally known as :the Atlantic or Paciiic type in which-a air of carrying wheels is used under the lreox. .The requirements to be'ulfilled in such a truck are that the wheels, axle and axle boxes-shall be allowed.y a lateralv movement relativelyl to the frame of the engine' preferably 4so restricted that in the movement laterallythe Icenter' line of the axle remains tangent to a circle whose center is located on a line'intersecting the center of the axle yat right'angles .t6 its llongitudinal axis. It isalso desirable that a resistance should be oiieredto the lateral' displacement of .the axle boxes inord'er lto prevent the en;

ine and frame 'from moving `freely overV hem and to enable them to exert a effect on the engine and restrict its horizonte. l' oscillation when moving along a straight track and to assist in bringing its axis paral-A 'lel with the track whenpassing. .from curved,

track to straight.' In previous designs this lateral ,resistance has been aproxiinately proportional to the'lateral disp acernen't; in-l j creasing as the displacement increases, thusv aflordin .the minimum returning force when the 'disp aceinent is small and the greatest when it is large., This action isnot desirable,

on engines ofY thetype to which Amy invention has particular reference in which the maxifg mum resistance is required when the engine is moving along a straight ft-rack and lthe minimumwhen' rounding a curve.

The invention maybe said briefly to consistofalaterally 'movable cross-head resistance mechanism between the 'axleboxand crosshead, and guidingmechanisni'carried by the body frame of the vehicle adapted to guide the axle boxand cross-head in their re-' speci-ive movements. Forv full icor'nprehen-f sion, however, of my invention reference must be had to the accompanying drawings formingr a part of this specification 1n which similar reference characters indicate the same parts andwherein- Specification fl'ette".rsPatent.`l Application led January 24', 1906. Serial'No.'27,664'.

Patented april- 13, 1909.

Figure 1 a@ side envenena one bnf f ,a -Journal lbearing,provided my invention;

3 is an end elevation ofthe bearing 'partly in sect1on; Fig.4 is a plan viewg'liigs. 5 and 6 are detail views of. a pair of 'oscillatory triangular struts which are -the primary means for are diagrammatical views illustrating .the

vehicle; while running along astraiglt piece of track and: 'rounding al curve, respectively.

Vrovided witligmyinventiom portions of the ody rameb eing .shown in horizontal section. The axles are indicated at 1, the axleb'o'Xes-'at 2', the bearings contained-in the frame oi the ,vehicle is indicated at 5. These parts are in the Vmain,constructed and `ar4 ranged as formerly. 5;

.T features lof my inventiony are the" axle means for guidingtlie said axle-box and cross-head in their movements.'

In order to v enable-the axle box to move relatively to the body-fra`1ne of the vehicle I thereof with vertical faces Al(l)curved'horizontallyon a center .coincident with the center on aline intersecting the centerA of the axle at right angles to the axis thereof. l' i l lA pair of oblong cavities 16 'and 1'7 are -of the facesl, while the ottoni corners thereof 'are adapted to present sockets 18,

tical jaws-"12 andfllif-"whfich each is eqiial in jacent to the axle box are curved fp lE .onl'orm to the faces l'andtheir upper ends termii nate in vertical box-like guides 14 and 15 rel spectively, having their adjacent sides open.

relative lpositions of the wheels.. and bodylof a- 9 is a; plan .view of=a two Wheeled-truck` .axle-boxes at 3, andthe wheels at 4 while'the increase'the same'in width and forni the sides I of oscillation'of th engine 'or-'other vehicle to' which itis applied, and consequently located v formed in the -top Aof the axle boxA in' parallel' i-planes and-one adj acent and lparallel to each ,18 and-19,119?, s These .faces 1Oc'cact'witl14 'guiding members consis'tng'f'of a pair of ver` F ig. 2 lis a similar view ofthefother half; .l y

affording the requiredvarying .resistance to the movement of the parts of bearing vrelatlvely to one, another 5 and Figs. f7 and 8 box adaptedto be' movable horizontally, a .cross-head movable vertically, means adaptl ed jto. exert a var 'ing resistance Eto the movements -of the ax e-box and crossliead, and 'f tion each"being "braced'by trans'iei's'e webs, While tbe faces 12"1L and 13a of tncse.]a\vs ad# eac side of theaxle b ox and positions to havetheir curved faces concentric and=in bearing'at-their apices, which'are rounded, in the respective sockets-25 and- 26 and .at the' briey the conditions obtaining when an enof the engine oscillates or is'displa'ced tothe vposition indicated by the dotted line e `eit .1s evident -that the resistance to lateral disthat of thefront in ten.

that', in rounding a-'curve'while'the lateral 4rection curved horizontally on a center coin-'- said engine or other vehicle.

'coinciding'.-fwitl'1 'the res vslidably in the vertical ,14 and 15, and

' a square recess 28 ln'its to 20` f Theweqired Avariable resistance to the horizontal movement of. the axle bo'xrelaf tivelyto the cross-head'is provided by this'- frame transmitted thereto through the usual is sunkl into the square recess 28) and a pair ally connected to the vehicle frame as usual 'ngine -and e the rear or bac corres ending end ofthe engine inthe n Thesel members Aare secured preferabl by bolts 16 to the`veh'icle frame one. at

and centrally' thereof. This cross head is l ee to slide vertically "in,' and v is retained against other displacement-b5r its guides' 14 and 15. 1

cross-'head and the. weight of the vehicle leaf spring 30 (the retainingcollarl whereof' of oscillatory trlangular struts 32 and 33,

cornersfof their bas es`(suchcorners being also rounded) in the respectivesockets 18, 18 and 1'9, 1'9, 4Thel strut 32 is of greater height than 33 to compensatethe difference in radius, and accommodate the greater oscillation.` The ends ofthe spring are pivot-f byhan ers .40.4 f 4 4 In orer that the intention ofwnf invention may be'clearly understood-'I point out' e is travel' along a straight piece of xck or' roun'diuri a curve..l Reference-should be had particularly to Figs. 7 and 8in which aL af indicate the wheelsof the front or leads ing truck, b bb' the drivin wheelsjof the truck Wheels;

Y and d' d indicating thegiails and e e' the center line of the engine. AIf the center line placement bf'the rear truck cooperates with.

to bring the en? ginel backinto 'positicn; t is also. evidentl resistance-fof the front 'truckfis pullinge tionc the :arrow 5l),- the strain oft-he rear truckis tending to pullzthe1reai'gSend;x of' the engine 'the' "opposite 'direction thusp're- .Prsenting a pair .of dgonal sockets Each tri the gapex,

1 v i venting the envinecurving" properly. p The' main feature ofbthis inventionas-hereinbefore' described is the mechanism provi a resistance to 'the lateral movement V.of t e truck with reference to the frame' ofll the en-' gine, (or vice versa), which is greatest atthe commencement ofthe displacement, at which' time 'considerable resistance isrequired to cause the engine t o move steadily' and which decreases as the displacementincre'ases, thus offering as'little -resistancefas `.desired when' the displacement-is great as on curves v'ofsmall-radii. f

The action is as follows-"When any lat-' eral displacementof the box takes lace-with v relation to' the frame, the axle, w eeh-axle box, and containedA arts, are moved (by the bearing relation of te curved faces-10 of the box to the corresponding faces 1.2" and 13* of the jaws 12 and 13) in a circular direction Y 'dependent on the radius to which these faces areformed. -At the'sainetimethe sockets 18, 18 and 19, 1'9"4 in the box carry thelower portions or bases ofthe-triangular struts with 'them and tend` to rbtate these struts .upon their .rounded apices' which are' retained by the sockets 25gand 26 against lateral displacement. If for instance,' the Wheel moves toward the'portion of the 'frame-indicated,

(referring to lFigs. 2 and 3) the sockets -18, i

,1'9 Hare moved toward'the sockets'lS and 19.

It is evidentthat the instant movement takes place .the'iveight transferred through thejstrut changes into a diagonal force tending to returnfthe box into'position. 4-If the movement continues this diagonal force becomesmore, and more nearly vertical unt-il when the sockets 18L 19 are vertically under offthe force has disappeared. and the weightalone-is transferred to the box'. y

Itis evident that this construction provides a cross head permitted vertical movet ment only and which-is utilized as an abutment to impress a lateral force Aon the axle box-and I do not restrict myself to the specific mechanism shown by winch this resistance isimpressed. A .l l

lThe 'xle box'illustrated constitutes toall intents Aand urposesAa part ofthe truck.

' arstru't presents a pan-of strutportions extendinsfr'om the apexof the strut to the opposite en' of its base :constitute members which are normally inclined from the verticahwhile each endlof such base conf .stit'utes `meiinsfor supporting the inclined member extending the opposite 'end to .what reif-rim is as, renewe- 1. .In a vehiclethe combination with the body-frame' and axle,one of such parts being -V displaceable relatively to the other, ofmeans locatedbetween the said parts and offering 4the socket 25, 26 the horizontal component iio leo

ig devices mounted independently of the -box and cross-head1 and adapted to guide the said parts in theirrespective move,

ments.

3; The combination of a horizontally movable. axle-box, a vertically movable'ciossff head, means in compression between the axle-box and cross-head. oeri'ng a 'verving 'resistance to the horizontal movement of the axle-box relatively to the oross-head, and guiding devices mounted independently of the axle-box end cross-head and adapted tol guide the said parts in theirrespective movements.

4. In a vehicle the combination with the body frame and truck thereof one movable laterally relatively to the other, of means in com ression between the saicL frame" and. true oering varying `resistance to the said" lateral movement, such resistance being greatest at the commencementof the displacement and decreasingas the'displace- -ment increases.' .l x 5. In a vehicle the-combination with the bodyframe and truck thereof, one movable laterally relatively to the other, of a vel-'ti-f cally movable member carried by one of the said parts, .and an oscillatory strut bearing in compression between the other part and-the movable member such strut being construct-,

ed and arranged to ofler v arving resistance to the movement of the-movable part and great- -iO-est resistance when thesaid movable part commences to move, the said resistance climjnishing as the movement increases;

' 6. In a vehicle v the combination With the- A body frame and truck thereof, one movable laterally relatively to the. other, of a vertically movable member arried by one of the said parts, and an oscillatory triangular strut bearing in compression between the other part and the movable member, for thepurpose set forth.

7. In a vehicle the combination with the body frame thereof,- of a vertically movable cross-head anda laterally movable axle -box the ends of the latter presenting horizontally curved vertical bearing faces, concentrici-eli tively to one-another, means for guiding the cross-head and mile box in their respective movements, a pair of com ression struts supporting the cross-head a iove the axle-hox,

o0 means whereby each of th said struts are retained normally in a position inclined from the vertical toward the center line of the vehicle, for the purpose set forth.

tively to one another, a pair'of 8i In a vehicle thepombinatio th body framethereojof ajvetcallytovabl cross-head Aand a laterally movbletexlebox theends of the latter prsentinglioiizontally curved vertical bearing faces',eoneelettrici-elil;A tively to one. another mean'sfojr guidingthecross-head endl axlf, i x in. their-.res ctivei;

movements the u'iidersidefofzthesai fer'oss headbeingffrned with' diagonal sockets and' lthe top o "'th' axlefbox being-formed@ correspondingly. disp'o'sed. recesses, each e 'such recesses formed -witha pair f52"f5" sockets, a air of tnangularstruts supporting; the cross- `ead above the axle-box-andpre.; senting rounded-angles, the api'c'es ofthe said triangular struts bearing in' the .sockets irilthe; underside of. the cross-head and-,the r`gunde d "l'8Q1 ends of the bases thereof bearing'ing-theSock' ets ofthe said recessesiufor the purpos,

A l 9. In a. vehicle 'the' combination body frame thereof, of a'. verticallyl move cross-headand a laterally movalrle-'axle" the ends of-thelatter presentin'gfhoiizontall curvedl vertical bearingfaces concentfic rela? tively to one anothena pair of members mounted rigidly upon-thcbody frame-i90 one at each end of the axle box andfpresenting curyed awshavingsthe said curged'faces of the 'axle x in'bearing relation therewith, the said members also presenting a ends -of tbe 'said crosshead and Aguide the same infits vel-'ticalt movement, a' :pair' of struts ,supporting the crossfheadabove the axle-box, .means whereby. '-each' of the. said struts isfretaine'd normally-in aposition inf 100 -clined from the-vertical toward thecenter'line ofthe vehicle, for the purpose set fr 1 l10; In a vehicle the combination withgthe' body frame thereof, of a verticali :movable l cross-head and. a. laterally mova e 's`r le box .105 .the ends of the latter presenting horizontally' 'l curved vertical bearing faces concentric-rel@ bers mounted rigidly upon4 `the body'frame box being formed with correspondingly posed recesses-` each otsuch recessesbe formed with a pair of sockets, a pair of tri-t angular struts supporting the cross-head above the axle-box and presenting roundedangles, the apices of the said triangular struts in the sockets in the underside of the cross.l

pair'of vertical guidesadapted ,to receive the 9 5 one at each end of the axle holland 119 :head'flnd Atlie rounded' ends of the bases sentinge pair of members normally inclined A thereof bearingy in the sockets of the said rein opposite directionsv and means supporting cesses,Y Vfox-fthe purpose set forth.` the same' in their inclined ositions.

"11. In slvehicle the combination with tire In testimony whereof, havejsigned' my 1 5 l l `5 body frameendtruck thereof, one'movable name' to this specification; in the presencel of later-elly relatiyely'tothe other,l of means in two subscribing. witnesses. eomvv ression- `between the said frame and g truc and offer-'ing a. varying resistnce to the A said movement such resistance being greatest s Witnesses: '10 when-'the parts are in theirnormal positions l WILLIAM P. McFEAjr,

relatively to eachother, the said means prei FRED J. SEARS. 

